diff --git a/web-scraping/readme.md b/web-scraping/readme.md
index 5891e4c..92aef72 100644
--- a/web-scraping/readme.md
+++ b/web-scraping/readme.md
@@ -1,7 +1,23 @@
 
 # Required modules
 
+## Requests module
+The requests module is used to send HTTP requests.
+- [Python 3.7](https://www.python.org/downloads/)
+- [Requests](https://pypi.org/project/requests/)
 ```
 pip install requests
 ```
 
+## BeautifulSoup module
+The Beautiful Soup Python library is used to parse HTML and XML documents.
+- [BeautifulSoup4](https://pypi.org/project/beautifulsoup4/)
+```
+pip install beautifulsoup4
+```
+
+## Selenium module
+The selenium module is used to automate web browsers.
+- [Python 3.7](https://www.python.org/downloads/)
+- [Selenium](https://pypi.org/project/selenium/)
+